122g (Size S)
130g (Size M)
137g (Size L)
*Compatible with ONE / ONE Custom Edition units manufactured in 2018 or later.
Introduction
Hip Belt for ONE
The hipbelt is for the ONE and ONE Custom Edition.
Compatible with ONE / ONE Custom Edition models released in 2018 or later.
Changes in the 2025 Model
- To better conform to the curvature of the lower back, we added L-shaped stitching to the stiff hip belt, providing a snug fit that wraps securely around the entire waist.
- The structure was redesigned with two webbing belts—upper and lower—for a more contoured tightening feel and easier adjustability to fit the body naturally.

How to attatch
- Make sure the hip belt is facing the right direction—the size tag should be on top.
- Slide the hip belt through the mounting slot located at the bottom of the back panel on the ONE pack. While doing this, use your hand to press down the Velcro inside the slot to prevent it from catching.
- Secure the belt by pressing the Velcro on the belt against the Velcro on the pack.
- Flip the pack over and thread the stabilizer strap through the adjuster buckle.
- Check that the strap ends are facing outward—and you’re done!
Size guide
We have four available sizes to match your body shape. For the best results, we recommend taking your measurements before making a purchase.

Hip size(cm) | |||
---|---|---|---|
XS | S | M | L |
72-79 | 78-85 | 84-92 | 91-100 |
Be sure to measure around your hip bones, not your waist at belly button height.
If you’re between sizes, we recommend going with the smaller one.
A larger size can offer more support, but may not tighten enough if you prefer a more secure, close-to-body fit.
Instructions
Payment
- We only accept payment by credit card. We currently do not accept payment via bank transfer from overseas accounts.
- We accept the following Credit Cards: Visa, Master, American Express, and JCB.
- To download your receipt, please click the link included in the Dispatch Notice, which we will send by email as soon as the items are dispatched.
- Bank transfer is only availble for those that own a Japanese bank account.
Delivery
- Order Confirmation will be sent after the order.
- The items will be dispatched within 3 days after the payment is confirmed.
- The dispatch notice will be sent by email as soon as the items are dispatched.
- The delivery may be delayed by unforeseeable reasons such as natural disasters and other logistics issues. We appreciate your patience and understanding.
- We cannot ship multiple orders in one package due to how our delivery system is currently set up.
- We will ship to regions in North America, Oceania, and Europe (excluding Russia) via DHL. For regions in Asia, the Middle East, Central and South America, Africa, and Russia, we use EMS (International Express Mail Service) for shipping.
- Shipping fees and delivery times vary depending on the shipping destination as well as the size and weight of the items.